Normally?Normally a quadcopter can stay in the air and descend in a semi-controlled manner while spinning very quickly around itself, using just two opposite motors. If it's not programmed on DJI side, it's DJI's fail.
Research projects like that are what gave us these machines in the first place. As it's an algorithm, what reason is there that DJI couldn't implement a similar failsafe at some point? In other words, it is smart programming.Normally?
No .. normally a quadcopter losing a motor is like a plane losing a wing.
What you are talking about isn't a simple matter of smart programming.
No manufacturer is making quads that can fly on 3 motors.
The one in the video was a specially made research project.
The good news is that losing a motor in flight is so rare that it's not really a worry.
No one said it was simple ; ) The point is, it can be done. There doesn't appear to be anything special with that test quad either, it's just a small airframe, flight controller, and 4 motors. No idea on their background, etc. but my bet is those guys will license that out at some point, if not open source it.Yes .. it's smart programming - on a machine made specially to use it.
If it was that simple lots of manufacturers would offer it but so far none do.
Look again, he clearly controls it and lands it safely at 0:40:HA! there are enough people out there having a tough time flying on 4 motors, three would be impossible. Losing one motor throws the quad into an elongated flip, rotating around a point between the bad motor and the central hub, while flipping. You don't recover from that, you just watch in horror as it dives into the ground. Watch the video above in slo-motion and try to think of a way to recover it. (good luck) A VERY good reason not to overtighten the props and strip one.